How to DFP ads to the timeline
Firstly you will need a DoubleClick for Publishers account set up, some working creatives and functioning ad codes.
1. Go to Settings > Pugpig DFP to apply your ads
2. Add the DFP code into the Ad unit field. These can be found in the Targeting column under Line Items in your DFP account e.g. ad_unit="my_ad_code_here". You'll need to extract only the ad code e.g. my_ad_code_here
3. Apply the frequency you would like the ad(s) to appear in the timeline to the Frequency field.